Cross-tie hewer and veneer-mill.



No. 762,205. PATENIED JUNE 7, 1904.

B. H. SEYMOUIL GROSS TIE HEWER AND, VENEER MILL, APPLIOATIOHAIILED 10V. 2a, 1903.

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NO- 762,205. PATENTED JUNE], 1904. B. H. SEYMOUR. GROSS TIE HEWER AND VENEER MILL.

APPLICATION FILED NOV.23,-1903.

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A ITORNE VS THE NORRIS Pzrzas co, PmYO-UTHQ wASHmt-TON. 04 c.

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No. 762,205. PATENTED JUNE 7, 1904.

I B. H. SEYMOUR.

GROSS TIE HEWER AND VENEER MILL.

APPLIOATION FILED NOV. 23. 1903/ 4 SHEETS-SHEET 3.

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A TTOHNE Y8 PATENTED. JUNE 7, 1904.

B. H. SEYMOUR. .GROSS TIE HEWER AND VENEER MILL.

APPLIGATION FILED NOV. 23, 1 9'03.

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.Batented June '7, 1904.

UNITED STATES PATENT OFFICE.

BENJAMIN H. SEYMOUR, OF OCALA, FLORIDA.

CROSS-TIE HEWER AND VENEER-MILL.

SPECIFICATION forming part of Letters Patent No. 762,205, dated June 7, 1904.

Application filed November 23, 1903. Serial No. 182,340. (No model.)

1'0 01M whom it may concern.-

Mills, of which the following is a specification.

This invention is an improvement in woodworking-machines, and especially in machines of the nature of cross-tie hewers and veneermills,whereby the ties may be readily brought to the desired shape or veneers can be out as may be desired; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a front elevation of a machine embodying my invention. Fig. 2 is a top plan View thereof. Fig. 3 is an end elevation. Fig. 4 is a detail rear ele vation of the log-clamp. Fig. 5 is a detail section on about line 5 5 of Fig. 4. Fig. 6 is a detail perspective view of the log-clamping jaw. Fig. 7 is a detail section on about line 7 7 of. Fig. 2, and Fig. 8 is a detail section on about line 8 8 of Fig. 3.

In carrying out my invention I employ a suitable framing having base-beams A, upright beams B, top beams O, and a bed D, on

which the logs may be moved toward the cutter by the carriage K presently described.

In the framing are journaled near its opposite ends crank-shafts F and G, having cranks f and g, which are connected by the pitmen F and G with the opposite ends of the knife H. The knife H comprises the bar 1H and the blade H and operates at one end between the guide-bars I and at its opposite end be- F and G are turned in the same direction by the means presently described the knife H, will be given a reciprocating and also a some-f what oscillating movement, so that it will cut with a shearing action, which is desirable in operatingupon heavy logs. The crank-shafts F and G are provided, respectively, with gearwheels F and G which are meshed by pinions f and g on counter-shafts F and G and these counter-shafts are provided with bevel-gears f and which are meshed by bevel-gears '21 and c" at the ends of the connecting-shaft I. Power may be applied to drive the shafts, and this may be effected by the construction shown, in which a pulley J is clutched by a suitable form of clutch mechanism on the counter-shaft F the clutch mechanism having a lever J by which the pulley may be clutched on or released from the shaft F and this pulley J may be connected by belt-gearing with a suitable drive-power in any ordinary manner.

The carriage K for the logs is movable back and forth on the bed-sills D and is provided with suitable knees K and at its ends with means for clamping the log. As shown, the log-clamps (see Figs. 4 and 5) comprise frames L, which are mounted on the carriage K and are provided with the jaws M for holding the logs. The frame L may, if desired, be slidably mounted on the carriage K, and means, such as set-screws L, (shown in Fig. 4,) may be employed to secure the frame L in any desired position upon the carriage K.

The jaws M are toothed at M and have shanks M slotted at M so they can be adjustably connected with the slides N, mounted in the frame L, and arranged to be adjusted by the screws O in order to force the jaws M into engagement with the log. The jaws M may by the slots h 3 be adjusted in and out to suit logs of different sizes and may be secured in any desired adjustment by the screws 1W, as will be understood from Fig. 4 of the drawings.

In practice it is desirable to feed the carriage K and the log forward toward the knife in correspondence with the operation of the knife, so that the log will be fed toward the knife after each operation of the latter. This may be efiected by the construction shown in Figs. 2, 3, and 8. This includes transverse feed-screws P, journaled at P to the main frame and screwing at P in connection with the carrige K, so that as they are turned in one direction or the other they will either ad- Vance or retract the carriage K, and these feed-screws P are provided with beveled pinions P, which are meshed by beveled pinions Q on the feed-shaft Q. (See Fig. 2.) This feed-shaft is provided with a pinion Q which is meshed by a toothed wheel R, and the latter is engaged by pawl devices S on a swinging arm S, which arm swings concentrically with the toothed wheel R and is connected by a link or pitman S with one end of the lever S, the other end of which lever is connected by a link S with a rocker S pivoted between its'ends at S" and arranged at its other end to be engaged and operated in one direction by a pin or projection S in a hub S on the crank-shaft Ur, the rocker S" being operated by a spring S in opposition to the projection S, as best shown in Fig. 8 of the drawings. By using pins S of different lengths and employing a pin of the desired length in each case, to which end the pins are made interchangeable by threading them at one end at S into the hub S, as shown in Fig. 8, will vary the throw of the rocker S and so cause the swinging arm S'to move its pawl to such extent as to move the toothed wheel R different distances at each step-by-step operation of the rocker.

The described construction will be found efficient in moving the logs step by step; It may, however, be desired to feed the log more rapidly, and it will also be found desirable to quickly retract the carriage. To this end I employ mechanism independent of the stepby-step devices and which must be brought into play by the means presently described, it being understood that when such independent feed mechanism is brought into operation the pawls S on the swinging arm S should be moved out of engagement with the tooth R, which may be effected by throwing said pawls back, or, if desired, any of the connections between the swinging arm S and the rockermay be disconnected, or the pin S may be screwed out of the hub S".

The independent feed mechanism includes a friction-disk T on the connecting-shaft l, meshed with a friction-pulley T on a transverse shaft at T'", which shaft is also provided with a friction-pulley T, which extends adjacent to the feed-shaft Q. This feed-shaft is provided with two friction-disks U and U, which are keyed on and slidable along the feed-shaft Q and extend on opposite sides of the friction-pulley T and may be brought alternately into engagement with said pulley T by means of the shifting devices U and U, as shown in Figs. Qand 7, or may be brought to a neutral position in which the pulley T will not drive either one of the disks U and U. in the position of parts shown in Fig. 7 the pulley T bearing against the pulley U, will l turn the latter and the shaft Q, in one direction, and if the disks U and U should be shifted to free the disk U from engagement with the pulley T and to move the disk U into engagement with the pulley T the shaft Q will be turned in the opposite direction. From this it will be seen the disks U and U may be manipulated to cause the pulley T to turn the feed-shaft Q in one direction or the other or to such a position that the pulley T will not operate the feed-shaft Q, at all. This independent feed mechanism will be found useful in rapidly retracting the carriage as well as in securing a rapid advance movement of the carriage whenever such operation is desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The improved machine substantially as herein described comprising the framing, the knife, the guides for one end of the knife, the keeper-guides for the other end of the knife and provided with longitudinal inclined slots, the projections on the knife operating in said slots, the opposite crank-sl1afts journaled in the framing, the pitmen connecting the cranks of said shafts with the opposite ends of the knife, counter-shafts geared with the crankshafts, a connecting-shaft geared with the crank-shafts, the log-carriage provided with clamps for securing the logs, the feed-screws journaled to the framing and having threaded engagement with the carriage, the feed-shaft, gearing between the feed-shaft and the feedscrews, the disks keyed on and movable along the feed-shaft, the transverse shaft having a friction-pulley at one end extending between the disks of the feed-shaft and a friction-pulley at its other end, a friction-disk on the connecting-shaft engaging with said friction-pulley on the transverse shaft, a toothed wheel for turning the feed-shaft step by step, a swinging arm having pawl devices engaging said toothed wheel and intermediate devices between said swinging arm and one of the crank-shafts whereby to operate the feedshaft step by step relatively to the movement of the crank-shafts substantially as set forth.

the knife and the guides for the knife, of the opposite crank-shafts, the pitmen connecting the cranks of said shafts with the knife, the counter-shafts geared with the crank-shafts, the connecting-shaft geared with the countershafts, a carriage provided with means for holding a log, a .feed mechanism for the carriage, devices whereby said feed mechanism will be operated from one of the crank-shafts, and independent feed mechanism, and means for operating the latter from the connectingshaft substantially as set forth.

3. In a machine substantially as described the combination with the frame, the knife and the crank devices for operating the knife, of

2. The combination with the framing and IIO the shafts carrying said crank devices, a conmeeting-shaft, gearing between the connecting-shaft and the crank-shafts, the carriage, the feed-screws for the carriage, a feed-shaft geared to the feed-screws, disks keyed on and movable along the feed-shaft, a transverse shaft, a friction-pulley at one end of said transverse shaft and projecting between the disks of the feed-shaft, friction-gearing between the transverse shaft and the connecting- 1 shaft, an independent step-by-step feed mechanism and means for operating said independent feed mechanism from one of the crank shafts.

BENJAMIN H. SEYMOUR. Witnesses:

S. T. SIsTRUNK, H. C. SIsTRUNK. 

